On the 2500/3500 Rams in 1995 (edit wrongly said 1996) here is a thermistor temperature sensor in the trans cooler line going up to the radiator. If the ATF is not up to a specified temp (147?) the pcm will not let it shift into OD.

The 1500 Rams do not have this ATF temperature sensor, although there is a plug in the wiring harness near the trans.

Last edited by 360view; 01/04/17 11:20 AM.